| 基于虚拟矢量合成的三电平直接转矩控制方法 |
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| 引用本文： | 杨兴山.基于虚拟矢量合成的三电平直接转矩控制方法[J].菏泽学院学报,2010,32(2):36-41. |
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| 作者姓名： | 杨兴山 |
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| 作者单位： | 曲阜师范大学电气工程与自动化学院,山东日照,276826 |
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| 摘 要： | 研究了一种新颖的基于虚拟矢量合成的永磁同步电机三电平直接转矩控制方法.基于通用的二极管钳位式三电平逆变器,将空间矢量调制与直接转矩控制相结合,在分析各基本电压矢量中点电流特性基础上,对原空间电压矢量中的中矢量和长矢量部分分解,构造虚拟中、长电压矢量,合成参考矢量.减小中矢量对中点电压平衡的影响,同时增大了冗余短矢量对中点电压的补偿作用.仿真结果证实了该方案的正确性.
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| 关 键 词： | 三电平 直接转矩控制 虚拟矢量合成 |
An Approach for Direct Torque Controlled System Fed by Three-Level Inverter Based on Virtual Vectors Synthesizing |
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| YANG Xing-shan.An Approach for Direct Torque Controlled System Fed by Three-Level Inverter Based on Virtual Vectors Synthesizing[J].Journal of Heze University,2010,32(2):36-41. |
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| Authors: | YANG Xing-shan |
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| Institution: | College of Electrical Engineering and Automation;Qufu Normal University;Rizhao Shandong 276826;China |
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| Abstract: | A novel scheme for direct torque controlled inducted motor fed by three-level inverter based on virtual vectors synthesizing is proposed.Based on the universal diode clamped multi-level inverter,direct torque control technology is combined with space vector modulation,after analyzing the characteristics of the midpoint-currents of basic voltage vectors,the original middle vectors and long vectors are partly divided into small vectors,to construct the virtual middle and long voltage vectors and synthesize th... |
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| Keywords: | three-level direct torque control virtual vector synthesizing |
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